sheppard



(No Model.) 2 Sheets-Sheet 1.

S. SHEPPARD, P. HAZLETT & S. J. OLUFP. APPARATUS FOR BLOWING GLASS.

No. 437.823. Patented Oct. 7, 1890.

{No Model.) 2 Sheets-Sheet 2.

S SHEPPARD, F. HAZLETT & S. J. GLUFF. APPARATUS FOR BLOWING GLASS.

No. 437,823. Patented Oct. '7, 1890.

UNITED STATES PATENT OFFICE.

sIMPsoN snnrrnnn, FRANCIS HAZLETT, AND SAMUEL JACKSON CLUFF, or

DUBLIN, IRELAND.

APPARATUS FOR BLOWING GLASS.

SPECIFICATION forming part of Letters Patent No. 437,823, dated October '7, 1890.

Application filed July 23, 1889. Serial No. 318,469. No model.) Patented in England June 25, 1888, No. 9,225,- in Belgium September 4:, 1888,1T0. 83,13 and in Austria-Hungary October 8, 1888, No. 64,046 and No- 41,406.

To all whom it may concern.-

Be it known that we, SIMPSON SHEPPARD, FRANCIS HAzLnrr, and SAMUEL JACKSON OLUFF, subjects of the Queen of Great Britain,

5 residing, respectively, at Alphonsis Avenue, Dumcondra, l OOonnell Avenue, and 50 Fleet Street, all in the city and county of Dublin, Ireland, have invented Improved Apparatus for Blowing Glass, (for which Letters [0 Patent have been granted to us in the following countries, viz: in Great Britain, No. 9,225, dated June 25, 1888; in Belgium, No. 83,134, dated September 4, 1888; and in Austria-Hungary, No. 64,0l6 and No. 41306,

dated October 8, 1888,) of which the following is a specification.

In accordance with our invention we pro duce simple, economical, and easily-manipulated apparatus to be employed in the process of blowing glass into various forms according to the uses for which glass is generally employed-such as, for instance, into, among other articles, bottles and vessels of various kinds-and in lieu of the ordinarily-followed process of insutfiation from the mouth through the well-known blow-pipe used in the process of glass-blowing. The apparatus which we employ comprises an air injector or insuiilator attached by means of a flexible tube and suit able fittings to the ordinary blowpipe. Said injector or insufflator is actuated by the arm of the operator without in any way interfering with the usual manipulation of the viscid glass or metal (taken from the furnace) 3 5 upon the end of the blow pipe, which latter may be rotated and moved in any desired direction by means of a swivel, knuckle, or other suitable joint to which the blow-pipe is attached.

In order that our invention maybe the better understood, we have appended the accompanying two sheets of drawings, in which Figures 1, 2, and 3 illustrate diiterent forms of the insufflating portion of the device according to our invention, although we do not restrict ourselves to any special type of in suffiator or air-injecto12 Fig, 4 shows one form of joint for connecting the flexible tube to the blow-pipe. Fig. 5 is a view of a uni versal joint, and Fig 6 a view of knucklejoint to allow of the free manipulation of the blow-pipe. Fig. '7 shows an alternative method of connecting the flexible tube from the iu sufiiator with the blow-pipe, and Fig. 8 represents the apparatus ready for use.

In carrying out our invention we form an air injector or insufflator A of any suitable shape, the walls a a of which are preferably of wood, and hinged together at the lower end Z2. Upon the edges of the walls a a is stretched and properly secured thereto, so as to insure an air-tight joint, a skin of leather or similar suitable pliable material B, thus giving to the insuffiator abellows-like formation. A pocket of pliable material similar to that employed upon the body of the injector or insufflator surrounds and is secured upon the hinged end I), so as to afford increased strength to that part. One or more springs fitted within the body of the injector or insufflator keeps or keep the bellows-like device expanded and constantly charged with air, which latter enters through an aperture O, formed in one or both walls of the insufliator, said aperture 0 being fitted with a suitable checkvalve. (Shown in dotted lines at 0'.) It is also provided with a nozzle or with nozzles D, to-allow of the attachment of a flexible tube E, Fig. 8, connected at the other end to the blowpipe F.

Attached to the extremity of the flexible tube E aforesaid is a connecting-piece G, which may be provided with a screw-thread c, as shown in Fig. 4, of such a pitch as to require only a half-turn to insure a tight joint. As a means of preventing the accidental separation of the connecting extension-piece G from the blow-pipe F, we provide a small bolt cl, which latter, upon the connecting-piece G being screwed home, is shot into the longi- 9o tudinal flattened or recessed portion 6, formed at'the point of connection of the connector or extension-piece G with the ordinary blow F; or, as a modification of the above-described method of connection, we may employ a 5 double catch H, Fig. 7, adapted to the metal extension-piece G, formed of two levers fithe hooked extremities of which engage with a rim or collar g, secured to the end or forming part of the ordinary blow-pipe F aforesaid,

said leversf being held in position by means of the springs h, fitted beneath the curved ends t' of the levers, as shown; or, in lieu thereof, rings of india-rubber or other resilient material may be employed as equivalent means for securely retaining the levers f in position.

A washer of india-rubber or similar elastic compressible material is interposed between the connecting=piece G and the blow-pipe F to insure a perfectly air-tight joint.

Attached to the connecting-piece G aforesaid is a universal joint I, Fig. 5, a knucklejoint J, Fig. 6, or other suitable swivel-joint, whereby the blow-pipe F maybe rotated and moved in anydesired manner and direction during the manipulation of the globular portion of molten glass or metal upon the end of the blow-pipe.

I In using the apparatus-abovedescribed the injector or insuffiator A, which is provided with straps j or other suitable means of fastening passing through the cleats k, is secured to the body of the operator in such a manner as to allow of the expanded ins-ufflator being compressed by the elbow. inserts the end of the blow-pipe F into the mass of molten metal and having obtained from the furnace the desired quantity, works it upon the marver provided for the purpose, and then after slight expansion by 1 pressing the Walls of the injector the molten metal is placed in the mold. Then upon the operator exerting pressure on the expanded insufilator, air is forced into the molten metal aforesaid, which latter fills every portion of the mold, and the bottle or other article is duly formed, the return of the air into the tion.

By the means which we employ, as above The operator then' requirements, without in any respect interfering with existing plant or arrangements in glass-blowing, beyond the alterations above described, to the ordinary blow-pipes; or the blow-pipes may be formed in the first instance having the special means above described for connecting the blow-pipe F to the flexible tube E. a a

A further advantage in connection with our improved apparatus is the facility with which the flexible tube E may be connected with and disconnected from the blow-pipe, thus insuring great rapidity and regularity in carrying out the operation of glass-blowing.

Having fully described our invention, what we desire to claim and secure by Letters Patent is-== An apparatus for blowing glass, comprising the insufflator A, the flexible tube'E, the pipe F, and means, substantially as described, for connecting the various parts together.

In testimony that we claim the foregoing as our invention we affix our signatures in pres ence of witnesses.

SIMPSON SHEPPARD. FRANCIS HAZLETT. SAMUEL JACKSON OLUFF. 

